HERE ARE THE FIRMWARE FILES THEY ARE ZIPPED SO YOU MUST UNZIP THEM TO BE ABLE TO USE THEM.

WHEN UPDATING FIRMWARE ON DVR YOU MUST KNOW WHAT FIRMWARE IS CURRENTLY LOADED IN THE DVR BY GOING TO THE MAIN MENU AND SELECTING THE "SYSTEM" TAB.  A FIELD NAME "VERSION" WILL DISPLAY THAT FIRMWARE VERSION CURRENTLY LOADED IN THE DVR.

THE ORDER THAT FIRMWARES HAVE TO BE LOADED ARE AS FOLLOWS:
UNDER 1.3.1 --> 1.3.1 PATCH --> 1.3.3 --> 1.3.4 --> 1.3.5.3 --> 1.3.6 --> 1.3.7

IF YOU DONT FOLLOW THE ORDER OF FIRMWARE YOU CAN HALT THE SYSTEM AND CAUSE THE DVR NEVER TO BE USABLE.

FIRMWARE CAN BE LOADED ONTO THE DVR BY THE USB PORT, LOAD THE FIRMWARE FILE TO THE USB MEMORY, INSERT IT IN THE USB PORT OF THE DVR, THEN REBOOT DVR, AS ITS BOOTING UP IT WILL PROMPT YOU TO ACCEPT THE FIRMWARE UPGRADE. DVR WILL PROCEED WITH UPGRADE AND WILL REBOOT WITH THE NEW VERSION. REPEAT AGAIN WITH THE FOLLOWING VERSION IN THE ORDER.

4CH NUBIX

1.3.7 4ch
NUBIX4 VERSION 1.3.7 9/10/09

1.3.6 4CH:
NUBIX4 SATA CONVERTER COMPATIBLE VERSION 1.3.6 LATEST 3/25/09

1.3.5.3 4CH:
NUBIX4 VERSION 1.3.5.3

1.3.4 4CH:
NUBIX4 VERSION 1.3.4

1.3.3 4CH:
NUBIX4 VERSION 1.3.3

1.3.1 PATCH 4CH:
NUBIX4 PATCH VERSION 1.3.1

8CH AND 16CH NUBIX

1.3.7 8CH AND 16CH:
NUBIX 8 AND 16 VERSION 1.3.7 9/10/09

1.3.6 8CH AND 16CH:
NUBIX 8 AND 16 SATA CONVERTER COMPATIBLE VERSION 1.3.6 LATEST 3/25/09

1.3.5.3 8CH AND 16CH:
NUBIX 8 AND 16 VERSION 1.3.5.3

1.3.4 8CH AND 16CH:
NUBIX 8 AND 16 VERSION 1.3.4

1.3.3 8CH AND 16CH:
NUBIX 8 AND 16 VERSION 1.3.3

1.3.1 PATCH 8CH AND 16CH
NUBIX 8 AND 16 PATCH VERSION 1.3.1